Portable mobile power supply that automatically converts output current and its implementation method

A technology of outputting current and mobile power supply, which is applied in the direction of converting DC power input to DC power output, battery circuit device, output power conversion device, etc., can solve the problem that the current cannot be changed, and achieve the effect of changing the output current.

Active Publication Date: 2016-03-23
SICHUAN PISEN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem that the current of the output interface of the portable mobile power supply in the prior art cannot be changed, the present invention discloses a portable mobile power supply that automatically converts the output current and its implementation method

Method used

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  • Portable mobile power supply that automatically converts output current and its implementation method
  • Portable mobile power supply that automatically converts output current and its implementation method
  • Portable mobile power supply that automatically converts output current and its implementation method

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Embodiment Construction

[0016] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] like figure 1 A schematic diagram of the internal structure of the portable mobile power supply that automatically converts the output current. The invention discloses a portable mobile power supply that automatically converts the output current, which specifically includes a single-chip microcomputer, a DC-DC converter, a USB output interface, a current detection circuit, and a gain conversion circuit. The single-chip microcomputer is respectively connected to the DC-DC converter, the current The detection circuit and the gain conversion circuit, the DC-DC converter is connect...

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Abstract

The invention relates to the technical field of movable power supplies, and discloses a portable movable power supply for automatically switching output currents. The portable movable power supply comprises a single chip computer, a DC-DC converter, a USB output port, a current detection circuit and a gain changing circuit. The single chip computer is respectively connected with the DC-DC converter, the current detection circuit and the gain changing circuit, the DC-DC converter is connected with the USB output port, the current detection circuit is connected with the grounding end of the USB output port, the current detection circuit is connected with the gain changing circuit, the output port of the single chip computer is connected with the gain changing circuit, the gain changing circuit is connected with the DC-DC converter, and the output end of the gain changing circuit is connected with the feedback input end of the DC-DC converter. The single chip computer outputs control signals to the gain changing circuit according to a judgment result, changes amplification times of the gain changing circuit, thereby changes the feedback input quantities of the DC-DC converter and accordingly achieves the purpose of changing the output currents of the DC-DC converter.

Description

technical field [0001] The invention relates to the field of mobile power supplies, in particular to a portable mobile power supply that automatically converts output current and an implementation method thereof. Background technique [0002] In the prior art, with the widespread application of portable electronic products such as smartphones and iPADs, users often need to charge the batteries of the electronic products in time, which correspondingly leads to the widespread application of portable mobile power supplies. The mobile power supply is a portable charger that integrates power supply and charging functions, and can charge or supply power to various electronic products such as mobile phones anytime, anywhere. [0003] In the prior art, the output interface of the portable mobile power supply can only output a fixed current, for example, it can only achieve a single output of 1A or 2A, but currently 1A is mainly used for charging mobile phones, and 2A is mainly used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02M3/00
Inventor 赵武
Owner SICHUAN PISEN ELECTRONICS
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